First, I just wanted to say that that is a wonderful GPA you have and I wish you the best of luck on being admitted to RN school. I do know schools look at your overall GPA and your prereq GPA (science courses). But, that is not the only thing they consider when accepting applicants.
At my school I was required to take an entrance exam, TEAS I believe. I was also required to write an essay on why I wanted to be a nurse. I also had to supply references, letters of recommendation for my school, and an interview with the Dean of my RN program. Yes, my school did look at my GPA and scored it with the point system. Mine wasn't as high as yours but like I said, they do consider more than a GPA and every school is different.
Some schools may require one to be a CNA for admission, mine did not. But, I can see how being a CNA or hospital volunteer or other health professional (LPN, phlebotomist, medical assistant etc) would benefit someone for acceptance. I also knew in advance that I would need to be certified in CPR and first aid before attending nursing school. So, I made sure I had those certifications when I was applying.
I asked alot of questions. I was always in touch with my school making sure they recieved this or that document. I asked them if there was anything I could do to better my chances of being accepted into school. I kept in touch and followed up on issues that arised. Basically, I didn't let them forget who I was which confirmed even more my committment and interest in their school. I attended all of the pre-nursing student meetings and orientations at my school. I made friends with current nursing students at my school and asked them questions about school. I talked to the nursing instructors at my school and asked them about the program.
I pretty much did anything and everything that was in my ability to "stand out" and rise above the rest. And, I was accepted.
But, I do know that if I wasn't accepted that I would try and try again. Just because one does not get accepted into a nursing program the first time, does not mean you are a failure. There could be many reasons why one doesn't get accepted the first time and it doesn't always mean its personal. It could be space availability among other things.
You'll be fine. Either way, keep at it and don't give up. I wish you the best and good luck.